How is public money spent? Steve Ballmer has the data

The former Microsoft chief executive is unveiling a website aimed at giving United States citizens a transparent look at government budgets.

Mr. Ballmer plans to make public a database and a report that he and a small army of economists, professors and other professionals have been assembling as part of a stealth start-up over the last three years called USAFacts. The database is perhaps the first nonpartisan effort to create a fully integrated look at revenue and spending across federal, state and local governments.

Using his website, USAFacts.org, a person could look up just about anything: How much revenue do airports take in and spend? What percentage of overall tax revenue is paid by corporations?